BOSTON — The Coast Guard, along with Massport Fire Department, Boston Police Department, Massachusetts State Police and port tugs responded to a containership that broke free from its mooringWednesday at around 12:45 a.m at the Paul W. Conley Container Terminal in Boston.

Terminal workers who were aboard the 1,065-foot container ship Helsinki Bridge were able to safely disembark, and no injuries or pollution from the container ship were reported.

A docking pilot boarded the vessel, and along with the container ship’s crew, safely escorted the Helsinki Bridge to Broad Sound, where it remains anchored.

The Helsinki Bridge was carrying general cargo. The cause of incident remains under investigation.